The No Doubt singer has enlisted her husband - with who she has sons Kingston, eight, Zuma, five, and four-month-old Apollo - to help her in the second stage of the competition and she thinks he has already proved himself to be the right man for the job.
She said: ''He is super articulate and he has a really good opinion and he is smart and he's been doing a really good job.
''We both have, I think, a lot of experience in the sense that when you look back at all the shows and all the things we've done - and I mean, we all met like touring together and doing hundreds of shows - and it's so fun to be in the position to meet [all of the contestants].''
Meanwhile, Gavin is enjoying the experience but admits he feels a lot of ''pressure''.
He said: ''It's a lot of pressure! These people like, I press my button because I thought they sounded good, and then I fight for them. You are in the moment and then they choose you, and it's like wow, that's their whole life right this moment! So I felt really responsible.''
And the Bush frontman thinks the key thing he needs to do is help Gwen be the best she can be.
He added to 'Access Hollywood': ''The main thing, from my perspective, is just to make sure that Gwen is so good and excellent like all the other judges on the show.
''It's just sort of to not interrupt and to normally let her speak, let her do her thing and I'm just like a side thing.''
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